Palindrome Days happen when the date can be read the same way backward and forward. The dates are similar to word palindromes in that they are symmetrical.Today, 22 February, is such day and is being called a 2's day. Ironically, it fell on a tuesday (the second day of the week). Although the date is a big pun, it’s taken the world by storm, and many people have taken to marking the occasion with a celebration.Twosday has no historical significance nor any cosmic message, but it’s a fun pun to mark a rare occasion of the dates colliding together to form a palindrome: 22/2/22.This has only happened twice before with 1/11/11 and 11/11/11, and the next one will occur in 11 years, as threesday - 3/3/33 - but there’s no weekday to match it.